In Argentina, violence against women is rising nationwide. Prosecutor Marcela Juan is among a number of women trying to solve the problem. Some are working on legislation while others are taking to the streets, making their voices heard.

In Argentina, a mostly Catholic and conservative country, discussion around sex education has been heated. That’s why a law passed in 2006 to give kids comprehensive sexual education has been sporadically implemented. Until recently, it was ignored and put on the back burner.

Until recently, Sehuencas water frogs were among the more than 500 species of frogs and other amphibians on the brink of extinction. Just one male, named Romeo, was living in a lab in Bolivia, assumed to be the last of his species. But researchers recently found five more of these frogs in a cloud forest in the mountains of Bolivia. They took one of the females, named her Juliet, and brought her to meet Romeo.

In Argentina, abortion is illegal — except in cases of rape, incest and danger to the life of the mother. But abortion rights activists say even those rare cases where abortion is lawful, women and girls have a hard time accessing one.

Tensions between Brazil and Venezuela intensified last month after violent clashes broke out on the border over a botched humanitarian aid delivery plan. While tensions have subsided and the possibility of armed conflict has been ruled out, relations remain strained.

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Anchor Lisa Mullins speaks with the BBC's James Ingham for the latest on the crisis involving Ecuador, Venezuela, and Colombia, as Venezuela said today that its deployment of troops to the border with Colombia is nearly complete now,

The answer to today's Geo Quiz is Colombia -- fourth largest country in South America, after Brazil, Argentina and Peru. A writer for Lonely Planet recently claimed he didn't visit Colombia to research Lonely Planet's guide to the country. Anchor Lisa Mullins speaks with travel writer Ginger Otis about the revelation.

Lisa Mullins speaks with the BBC's James Ingham in Caracas about Venezuelan President Hugo Chavez's surprise call for Colombia's FARC rebels to release all their hostages and seek a negotiated settlement with the Colombian government.

The answer to today's Geo Quiz is Paraguay's capital, Asunciï¿½n. The World's David Leveille profiles the latest diplomatic initiative by the US Ambassador to Paraguay. It's a CD of Paraguayan folk songs sung in the indigenous language, Guarani.

For our Geo Quiz we were looking for the countries where you'd find the Mapuche, an indigenous people. The answers are Chile and Argentina. Mapuche protesters joined crowds along the streets of Santiago yesterday to protest the celebration of Columbus Day. The World's David Leveille reports.

Much of the world is thrilled at the election of Barack Obama to the American Presidency. But any wish that he be a 'president of the world' is likely to go unfulfilled. The World's Alex Gallafent reports.

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